Corner-bead



(No Model E. B. MARSH.

GURNBR BEAD.

VNo. 562,'783. y

. Patented June 23, 1896.

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UNITED STATES PATENT OFFICE.

EDWARD BJMARSH, OF AMHERST, MASSACHUSETTS.

CORNER-BEAD.

SPECIFICATION forming part of Letters Patent No. 562,783, dated June 23, 1896. Application filed January 18, 896. Serial No. '576,950. (lio model.)

To alt whom it may concorri.-

Be it known that I, EDWARD B. MARSH, of Amherst, county of Hampshire, State of Massachusetts, have invented an Improvement in Corner-Beads, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to provide an improved corner-head for turnin g corners in plastering.

Originally wooden heads provided With large rounded surfaces were employed,.the plastering being carried to these heads, the latter, however, forming or constituting the corner. A later development relatesto 4inetallic heads in the nature of thin metallic plates secured to the stndding and projecting angularly and outwardly from and at the corner of the stud and perforated to permit the plaster, which is carried to the extreme outer edge of the bead, to clench through and hold. An objection to this type of head is that a practically Sharp corner is produced, as distinguished from the larger and rounded corner produced by the wooden head. A further objection has been that the plaster, when carried out to this angularly-positioned headplate, is necessarily gradually tapered off to a thin or knife edge, rendering it easily chipped and detached, notwithstandingit is clinched some distance in within the edge.

My present invention comprehends a headpiece having a rounded periphery to produce a rounded corner and which is Supported by a suitable plate or plates after the manner of the metallic type of head.

My invention also comprehends a beadpiece provided in the direction of its length with one or more recesses or depressions into which the plastering material may flow and thereby obtain considerable thickness, even at its extreme edge, to render it less liable to crack or chip off.

The above, together with other features of my invention, will be hereinafter particularly described, and pointed out in the clams at the end of this specification.

In the drawings, Figure l shows in perspective a suflicient portion of a-building construction, including a head-piece embodyin g my invention, tof enable the latter to be understood; Fig. 2, a cross-section of the parts, Fig. 1; and Fig. 3 a perspective detail of one of the holders.

In the embodiment of my invention herein selected for illustration and shown in the drawings, a is what I shall hereinafter denominate as bead-piece, it being shown as forned from a long rod provided, in the present instance, at its opposite sides with long depressions or recesses a' to receive the plastering material.

To support the head-piece a in position, I provide one or more, preferably a plurality of, holders b, herein shown as made from flat metal, having one of their ends slitted to leave the three ears h', bg, and hs, two of which, for example the ears b" and hi, may be bent, as shown, to enter the depressions in the sides of the head-piece and thereby embrace a portion of and to hold said headpiece, or the latter may be otherwise supported from and by said holders 0r either of them, if desired.

VVhen placing the head-piece in position, I prefer to stagger the holders b, that is, have the alternate holders extended in opposite directions to be secured to different faces of this supporting-stud S, as shown in Fig. 1, although said holders may be arranged all at one face of the stud, if desired.

ln the present embodiment of ny invention, the ears bs are bent back to form stops to engage the supporting-stud and insure proper positioning of the holders and the head carried therehy.

In use the lathes l are 'laid in usual manner completely to the corner of the stud S, or as near the corner as ma)T be desired, and the plaster 1.7, of whatever-material, applied as heretofore, said plaster being extended to and finished smooth with the outer surface of the head-piece, to form therewith a snooth finished corner, as shown in Fig. 2.

It Will be noticed that by reason of the depressions or recesses in the head-piece and back of the corner surface thereof the plaster is given a suhstantial th'okness at its extreme edge where it meets the head-piece, these edges being shown at 2 2, Fig. 2, thereby giving the plaster a firm hold at the beadpiece, and at the same time, by reason of the greater thickness at the edge, rendering the IOO plaster less liable to chip off than with the thin knife-edge produced by a 'head lacking the plaster-receiving depressions.

For Wire lathing the cars hl 212 will be made shorter, so that the head Will stand out from the corner of the stud to a less distance than shown in the drawings, and it is evident that by varying the length of these ears or changing the contour or position of the same the position of the head may he varied as desired.

It Will be noticed that the outer surface 3 of the head is rounded to produce a rounded corner in the wall, and while this constitutes a feature of my invention, the latter is not limited'to any particular shape of outer surface at the corner.

My inventon provides for the clenching of the plaster through and through behind the head and between the holders b b, thus providing a firm corner, and because the lathing can be extended quite to the corner at either face of the stud the Wall is further strengthened at the corner..

My invention is not limited to the particular emb'odiment herein shown, for it it evident the samenay he varied without departin g from thespi'rit and scope of the invention.

Having descrihed myinvention, and without limitin g inyself as to detail, What I claim as new, and desirje toflsecure by Letters Patent, 'isf f:

1. The combination with a head-piece, of one or more holders therefor provided With ears embra'cing a portion of and to hold the said head-piece in position, substantially as described.

2. The herein-described head-piece adapted to be Supported at the corner in a wall, the same being provided With one or more plaster-receiving depressions, Whereby the said plaster may be maintained at substantial thickness to at-or near its line of juncture With said head-piece, combined with supports therefor having ears arranged to enter said depressions and thereby maintainsaid vheadpiece in proper position, substantially as de.,

scribed. v 3. A head-piece having a roundedcorn surface and a detachahle sheet-metal suppo tance from the supporting-stud, substantially as Vdescribed.

4. The combination With the head-piece, of theholders for the same, and stop-surfaces on.

and to insure correct positioning of said holders, substantially as described.

5. The herein-described head-piece, provided on opposite sides with longitudinal depressions, thereby forming similar symmetrical portions of said head-piece opposite each other, substantially as described.

6. A metallic holder, provided at one end With holding portions formed in opposition to each other, the other end thereof constituting a securing-shank, Combined With a head-piece having opposing angles formed to coperate With said holding portions and to he held thereby, suhstantially as described.

7. A metallic holder, having at one end holding portions formed in opposition to each other, a securing-shank, and a stop bent up, or otherwise formed, projecting from said holder, suhstantially as described.

8. The combination with a head-piece, of a plurality of independent holders, formed to engage said head-piece at desired points in the length thereof, and to hold said head- 'piece rigidly removed from the support to Whichsaidholders are attached, Whereby the plaster-may be applied against, and flush with, the safifid'bead-piece and he clenched behind the same, suhstantially as described.

9. The combination with a head-piece provided with longitudinally-extended plasterreceiving depressions, of a plurality of independent holders, formed to engage said headpiece at desired points in the length thereof and to hold said head-piece rigidly removed from the support to which said holders arc attached, Whereby the plaster may be applied against, and flu'sh with, the said head-piece and be clenc behind the same, substantially as 'descrrd 10. The coiiibihation With a head-piece, f

provided with longitudinally-extended dcpressions,-of a plurality of independent holders having portions formed to enter said depressions and thereby engage and hold said head-piece in position clear of the support and to he plastered against substantially as described.

In testimony Whereof I have signed my name to this specification in the prcsence of provided With oppositely-disposed cars hold-( ing the same between them at a proper distwo subscribing Witnesses.

EDVARD B. MARSH.

Witnesses:

FREDERICK L. EMERY, MARGARET A. DUNN.

ICO 

